Campervan/Caravan passes are available as an add on here.
You need one Campervan/Caravan pass for your vehicle. Each festival goer (including the driver) must also have a Weekend Camping Ticket in order to gain entry. Please find more details in the 'Campervan, Caravan & Motorhome Passes' section here.
If you have purchased a Campervan/Caravan pass, the physical pass will be posted to the address on your Ticketmaster account a few weeks before the festival.